700c, 27-Inch & 650c

Challenge's Grifo 33 Seta Extra Tubular boasts a tread that excels in snow, mud, grass and firm dirt. It's also built on their light and supple 260tpi hand-made silk casing for an awesome ride quality. Plus, there's an anti-puncture strip under the tread and polyester in the sidewalls for extra durability. You also get a latex tube. Latex tubes are lighter, thinner and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats, too.

Continental's Grand Prix 4000 S Tubular is destined for greatness. The seamless casing makes it easy to glue the tire to the rim, and this race-worthy tire has all the suppleness and incredible road feel you expect from a handmade German tubular. This sew-up also boasts Continental's Black Chili compound and Vectran Breaker Belt, so you get increased puncture protection as well as superior traction and handling.

The GP Attack benefits from its special version of Continental's Black Chili Compound that gives the streamlined 23mm front tire more grip with lower rolling resistance. The optimum front tire gets you quickly into the turns, feeling light and responsive while providing ample life.
The GP Force is a powerful rear tire and with its 25mm section combined with a fast Black Chili Compound, it gives excellent traction and road handling that’s second to none.
Both tires are made with Vectran puncture protection and show wear and tear levels via indicators in the tread, details that show professionals are at work.
*Includes both Attack (front) and Force (rear) tires.

Many of the fastest riders in the world place their trust in these handmade German tubulars. The Competition is a world-class tire proven everywhere from the cobbles of Paris-Roubaix to your local crit series. The 180-thread-per-inch, 3-ply casing offers a velvety-smooth ride and the Vectran sub-tread provides exceptional puncture protection, reduced rolling resistance and a great road feel.

Continental's Attack Comp is designed for use as a front tire. It's hand made in Germany and features their Black Chili rubber compound for excellent performance, their Vectran Breaker puncture protection, and a supple 3-ply, 110 thread-per-inch casing for sweet compliance to smooth every ride. It also boasts Conti's TirePositioningSystem (TPS) to maximize its aerodynamics and cornering.

Continental's Force Comp is designed for use as a rear tire. It's hand made in Germany and features their Black Chili rubber compound for outstanding performance, their Vectran Breaker puncture protection and a 3-ply, 180 thread-per-inch casing for excellent power transmission to the ground. It also boasts Conti's TirePositioningSystem (TPS) to maximize its aerodynamics and cornering.

Take one of the fastest tires out there, dial it in for all-out speed events, and you have Vittoria’s Corsa Speed G+. Profiled to take advantage of wider modern rims, it reduces wind drag while remaining fast-rolling. Rolling resistance is dropped even further by Vittoria’s G+ graphene rubber compound, a groundbreaking technological advance that creates a tire with ultra low rolling resistance on straightaways and tenacious traction under braking, acceleration, and cornering, giving you the best of both worlds in a single race-ready tubular. When speed is all that matters, Corsa Speed is the only tire that matters.

BOS is the airport code for Boston, Massachusetts, the original hotbed of North American ‘cross and home to some of the harshest weather and the toughest courses. If you’re pinning on a number in New England you better be ready for rain, roots, ruts and mud. And, you better have a set of Donnelly BOS tubulars in your quiver. This tire is even more aggressive than our mud-proven PDX. It features buttressed side-knobs for outstanding traction in super muddy corners and off-cambers, and a center tread pattern that is all bite when it comes down to a tractor pull.
Size:
- 700 x 33mm
Weight:
- 386 grams
Type:
- Tubular
Part #:
- D50030
Product Features:
- Buttressed side-knobs for superior cornering traction.
- Unique center knob pattern designed for maximum traction when you need it most.
- Soft rubber compound provides extra grip and shock absorption.
- Tubeless design means an airtight casing with no inner tube to puncture.
- Rubber-coated sidewalls are extremely durable and prevent deterioration from water, mud and dirt.
- No additional sidewall coating necessary.
- All in one construction means tread will not peel away from the tubular casing.
- Precision design creates a straight tire with no variances in size or alignment.
- The tire and base tape are consistently straight making it easy to glue and install to your wheel.
- A removable valve core allows for valve extenders installation as well as insertion of tire sealant.
- Liquid sealant can be used with all Donnelly tubulars to prevent or repair typical punctures.

The MXP Tubular combines a unique tread pattern with our innovative tubeless casing to create an amazing all-conditions tubular. It excels on grass, loose dirt, sand, moderate mud, hard pack and pavement. The MXP is named after the airport code for Milan, Italy, site of a World Cup cyclocross venue that calls for an all-conditions tire.
The tread features a classic profile with several modern updates. Precise grooves in the central chevrons allow the tread to flex and more aggressive side knobs offer traction and control beyond what you might expect. If you could only have one cyclocross tire in your quiver, the MXP is the one to have.
Size:
- 700 x 33mm
Weight:
- 378 grams
Type:
- Tubular
Part #:
- D50010
Product Features:
- Center chevrons and staggered side knobs for all-conditions.
- Soft rubber compound provides extra grip and shock absorption.
- Tubeless design means an airtight casing with no inner tube to puncture.
- Rubber-coated sidewalls are extremely durable and prevent deterioration from water, mud and dirt.
- No additional sidewall coating necessary.
- All in one construction means tread will not peel away from the tubular casing.
- Precision design creates a straight tire with no variances in size or alignment.
- The tire and base tape are consistently straight making it easy to glue and install to your wheel.
- A removable valve core allows for valve extenders installation as well as insertion of tire sealant.
- Liquid sealant can be used with all Donnelly tubulars to prevent or repair typical punctures

The Corsa has been the race-day choice of pros for years, and is now better than ever with 4C G+ compound technology! The latest Corsa is an evolution of the brand, and brings multiple industry-first technologies to market. Starting with our supple yet durable 320 TPI Corespun-K reinforced casing, and adding a proprietary mix of 4 different Graphene ISOtech compounds, the new Corsa achieves the holy grail of performance: speed, suppleness, durability, and reliability. Whether winning a Grand Tour, or a local crit, the Corsa family delivers world class performance.
- The world’s best tire just got even better!
- 4 separate Graphene G+ ISOtech compounds deliver speed, suppleness, durability, and reliability
- Reinforced Corespun-K casing for increased sidewall protection
- World Class performance for the world's best athletes

Challenge's Almanzo is a wide-profile, versatile, multi-surface tire that excels when the road is less than perfect. It's great on dirt and in situations where you just don't know what the next mile will throw at you. The center tread rolls fast, while the shoulder knobs corner great. It's hand made on Challenge's supple and light 260tpi SuperPoly casing with double puncture protection, a durable tread compound that sticks to the road in the corners, and tough polyester in the sidewalls. Tubular tires are favored for their low operating pressures and resistance to pinch flats, a solid benefit in the world of 'cross or gravel racing.

Limus means mud in Latin, which is exactly what Challenge's Limus 33 Tubular tire dominates. Its deep, aggressive and well-spaced knobs cut through muddy ground and grip great. You'll be zooming through the corners and off-camber sections thanks to its grippy side knobs, and powering up inclines with ease thanks to the tall center knobs. It's built on Challenge's light and supple 300tpi hand-made SuperPoly casing with polyester-reinforced sidewalls, and there's an anti-puncture strip under the tread. You also get a latex tube. Latex tubes are lighter, thinner and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats, too.

Race it hard or just head off the beaten path. Challenge's Strada Bianca gravel tire urges you to take the road less traveled. Challenge is world-renowned for their tubular tires, and these are prime examples of their trade, with the smooth riding characteristics and flat resistance that pros and enthusiasts expect. At a gravel and chip seal-smoothing 30mm wide, these tires have the extra volume it takes to comfortably fly over less-than-perfect surfaces. With their supremely supple 260tpi casing, hand-laid, high-mileage rubber tread, Paris-Roubaix-proven chevron tread, and double puncture barrier, the Strada Bianca tires offer incredible levels of control, puncture resistance, and comfort.

Tough rides call for tough tires, so if you're hitting the cobbles you better have Challenge's Paris Roubaix Tubular glued on your wheels. It has a wide profile to take the sting out of rough pavement and dirt roads, and puncture protection under the tread. It's hand made on their light and supple 300tpi SuperPoly casing with polyester-reinforced sidewalls, and a durable tread compound that sticks to the road in the corners. These tires also use latex tubes which are lighter, thinner, and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats, too.

For the ultimate in road feel and confidence, ride Maxxis' tubeless Padrone TR tire. Going tubeless, you not only remove the weight of the tube, but pinch flats are a thing of the past. Also, the tire conforms to the road better for a ride quality that once felt, you'll never want to go back. This tire goes from long training rides to fast races easily with its dual compound that provides enhanced wear life and improved cornering control. It also uses their Silkworm material for puncture protection, along with a high-strength carbon fiber bead to keep the weight down.

Challenge's Criterium is the choice of the pros. Countless victories and podiums have been been won thanks to its supple, core-spun cotton casing. It makes the tires race-day light, fast, and strong. This exceptional tire has a center tread that rolls quickly with a grippy side tread for excellent cornering. There's puncture protection under the tread, too. These tires us latex tubes which are lighter, thinner and more flexible than butyl tubes, increasing your comfort, lowering rolling resistance, and helping to prevent flats.

When you roll up to the starting line, you know you've got an aero advantage if your wheels are wrapped in Zipp's Tangente SL Speed Tubular Tire. The 320 TPI cotton casing is tough enough to tackle the ugliest stretches of blacktop, while the puncture-resistant belt keeps you inflated and rolling through the finish line. Zipp focused on improving leading edge airflow to get you that aero advantage, and the low rolling resistance saves power so you go faster longer. They even formulated rubber specifically tailored for grip and acceleration you'll notice as you're sprinting for the line. Your tires link you to the pavement; make that link as efficient as possible with the Tangente.

Whether it's fondos or races, Challenge's Strada Tubular tires are the choice of pros and enthusiasts alike. At 25mm wide, these tires smooth out rough pavement and chip seal. The core-spun cotton casing is light, supple, and offers an unparalleled ride. Pair that with a latex tube and you've got tires that carve the corners and feature incredibly low rolling resistance. The chevron tread provides excellent traction whether it's wet or dry. A puncture-protection belt under the tread protects your tires from road debris and helps you knock out the miles.

MICHELIN's Pro4 Tubular provides balanced performance that will carry your next competitive venture to success. An efficient all-around performer, this tire adheres to wet surfaces thanks to optimized casing deformation, a dialed-in tread pattern, and its specially formulated rubber compound. Add in a high level of anti-puncture protection, and you've got a very raceable tire that rolls fast and grips the road with the best of them.

The ultra-fast semi-slick tread makes the Podium TT the perfect partner when the finish is only seconds away. The time specialist scores with its lightweight while offering the benefits of superior puncture protection. A real competition tyre for time trial specialists and triathletes.